Hi,
since r13-2746 we hit an ICE when bootstrapping with -m31 and
--enable-checking=all.
../../../../libgfortran/ieee/ieee_helper.c: In function
'ieee_class_helper_16':
../../../../libgfortran/ieee/ieee_helper.c:77:3: internal compiler
error: RTL check: expected code 'reg', have 'subreg' in rhs_regno, at
rtl.h:1932
77 | }
| ^
../../../../libgfortran/ieee/ieee_helper.c:87:1: note: in expansion of
macro 'CLASSMACRO'
87 | CLASSMACRO(16)
| ^~~~~~~~~~
This patch fixes the problem by first checking for reload_completed
and also ensuring that REGNO is only called on reg operands rather
than subregs.
Bootstrapped and regtested --with-arch=arch14 and --enable-checking=all.
Is it OK?
Regards
Robin
--
gcc/ChangeLog:
* config/s390/s390.md: Move reload_completed and check operands for
REG_P.
---
gcc/config/s390/s390.md | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/gcc/config/s390/s390.md b/gcc/config/s390/s390.md
index 962927c31126..c89b15cf4f3c 100644
--- a/gcc/config/s390/s390.md
+++ b/gcc/config/s390/s390.md
@@ -8797,9 +8797,10 @@ (define_split
(neg:DI (match_operand:DI 1 "register_operand" "")))
(clobber (reg:CC CC_REGNUM))]
"!TARGET_ZARCH
- && (REGNO (operands[0]) == REGNO (operands[1])
- || s390_split_ok_p (operands[0], operands[1], DImode, 0))
- && reload_completed"
+ && reload_completed
+ && ((REG_P (operands[0]) && REG_P (operands[1])
+ && REGNO (operands[0]) == REGNO (operands[1]))
+ || s390_split_ok_p (operands[0], operands[1], DImode, 0))"
[(parallel
[(set (match_dup 2) (neg:SI (match_dup 3)))
(clobber (reg:CC CC_REGNUM))])
--
2.31.1
